Silicone Plugs

The STP3 is an L-series tapered silicone masking plug with a nominal body diameter of approximately 0.938". Designed for masking mid-to-large bore holes and threaded ports during powder coating,...

The STP3 is an L-series tapered silicone masking plug with a nominal body diameter of approximately 0.938". Designed for masking mid-to-large bore holes and threaded ports during powder coating, e-coat, and anodizing. Key features: Nominal diameter: ~0.938" | L-series mid-to-large plugRated to 400°F - compatible with standard powder coat cure cyclesFlexible silicone body accommodates slight diameter variation for a reliable sealSeats by hand without adhesive, releases cleanly after...

The STP5 (STS1063 series) is a large-bore tapered silicone masking plug for powder coating, e-coat, and anodizing applications requiring a larger plug than the STP3 and STP 6.5 can provide. Key...

The STP5 (STS1063 series) is a large-bore tapered silicone masking plug for powder coating, e-coat, and anodizing applications requiring a larger plug than the STP3 and STP 6.5 can provide. Key features: Rated to 400°F for standard powder coat cure temperaturesFlexible silicone body accommodates a range of bore diameters within its size classSeals threaded ports, large holes, and fittings without adhesiveInstalls and removes by handReusable hundreds of cyclesSold in production quantities Built...

The STP7 is a high-temperature tapered silicone masking plug for powder coating, anodizing, and e-coat applications. Built from flexible high-temp silicone rated to 400°F, it provides reliable bore...

The STP7 is a high-temperature tapered silicone masking plug for powder coating, anodizing, and e-coat applications. Built from flexible high-temp silicone rated to 400°F, it provides reliable bore and hole masking throughout the full cure cycle. Key features: Rated to 400°F - compatible with standard powder coat oven temperaturesInstalls into holes and threaded bores by hand - no adhesive requiredReleases cleanly post-cure: no residue, no thread damageFlexible silicone maintains a snug seal...

The STP7.5 is a heavy-duty large-format tapered silicone masking plug with nominal dimensions of 1.220" x 1.181". Designed for masking large ports, fittings, and threaded bores in powder coating and...

The STP7.5 is a heavy-duty large-format tapered silicone masking plug with nominal dimensions of 1.220" x 1.181". Designed for masking large ports, fittings, and threaded bores in powder coating and e-coat operations. Key features: Nominal dimensions: 1.220" large end x 1.181" small endRated to 400°F - withstands repeated powder coat oven cyclesHigh-temp silicone remains flexible through repeated cure cycles without hardening or degradingInstalls and removes by hand without tools or...